[Boost-build] Linker errors for boost.python

Subject: [Boost-build] Linker errors for boost.python
From: FJ (fjanoos_at_[hidden])
Date: 2011-08-04 19:38:44

Hello,

I'm new to Boost and I was trying to build the Boost.Python example from http://www.boost.org/doc/libs/1_47_0/libs/python/doc/tutorial/doc/html/python/hello.html. 


Platform: Windows 7, x64
Compiler: MSVC 9.0 (2008) x64 

Python: 2.7 (EPD)

Due to errors in downloading the installer for Boost, I grabbed the source .7z file from http://www.boost.org/users/history/version_1_47_0.html.

The user-config.jam file is setup as:

#  MSVC configuration
using msvc : 9.0 ;

#  Python configuration
using python : 2.7 : d:/software/Python ;



When trying to build the Python wrapping (extension) tutorial in \libs\python\example\tutorial using

>bjam toolset=msvc --verbose-test --debug-configuration 


The tool seems to find all the libraries and tools correctly:

notice: found boost-build.jam at D:/software/boost/boost-source/libs/python/example/boost-build.jam
notice: loading Boost.Build from D:/software/boost/boost-source/tools/build/v2
notice: Loading user-config configuration file user-config.jam from C:/Users/fjanoos/user-config.jam .
notice: [msvc-cfg] msvc-9.0 detected, command: 'C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\cl.exe'
notice: will use 'C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\cl.exe' for msvc, condition <toolset>msvc-9.0

...

notice: [python-cfg] Details of this Python configuration:
notice: [python-cfg]   interpreter command: "d:/software/Python\python"
notice: [python-cfg]   include path: "d:\software\Python\Include"
notice: [python-cfg]   library path: "d:\software\Python\libs"
notice: [python-cfg]   DLL search path: "d:\software\Python"



However, I get linker errors of the sort (the build log is attached):

...found 1534 targets...
...updating 10 targets...
msvc.link.dll d:\software\boost\boost-build\boost\bin.v2\libs\python\build\msvc-9.0\debug\threading-multi\boost_python-vc90-mt-gd-1_47.dll
   Creating library d:\software\boost\boost-build\boost\bin.v2\libs\python\build\msvc-9.0\debug\threading-multi\boost_python-vc90-mt-gd-1_47.lib and object d:\software\boost\boost-build\boost\bin.v2\libs\python\build\msvc-9.0\debug\threading-multi\boost_python-vc90-mt-gd-1_47.exp
function.obj : error LNK2001: unresolved external symbol __imp__PyErr_Format
numeric.obj : error LNK2019: unresolved external symbol __imp__PyErr_Format referenced in function "void __cdecl boost::python::numeric::`anonymous namespace'::throw_load_failure(void)" (?throw_load_failure@?A0xd31274d3_at_numeric@python_at_boost@@YAXXZ)
from_python.obj : error LNK2001: unresolved external symbol __imp__PyErr_Format
registry.obj : error LNK2001: unresolved external symbol __imp__PyErr_Format
class.obj : error LNK2001: unresolved external symbol __imp__PyErr_Format
numeric.obj : error LNK2001: unresolved external symbol __imp__PyExc_ImportError
numeric.obj : error LNK2019: unresolved external symbol __imp__PyErr_Clear referenced in function "bool __cdecl boost::python::numeric::`anonymous namespace'::load(bool)" (?load@?A0xd31274d3_at_numeric@python_at_boost@@YA_N_N_at_Z)
class.obj : error LNK2001: unresolved external symbol __imp__PyErr_Clear
function.obj : error LNK2001: unresolved external symbol __imp__PyErr_Clear
object_protocol.obj : error LNK2001: unresolved external symbol __imp__PyErr_Clear

I'm not able to determine what the problem is - either it's a 64/32-bit conflict in the libraries - or that boost is trying to build multi-threaded debug code while the python libraries are from a pre-built binary distribution ?

Any suggestions / ideas ?

Thanks,
-fj